HOMEVULNERABILITIESCVE-2016-9039
MEDIUM

CVE-2016-9039

CWE-400Published: January 31, 2017· Updated: Jun 17, 2026

6.2
CVSS v3.1

Official Description

An exploitable denial of service exists in the Joyent SmartOS 20161110T013148Z Hyprlofs file system. The vulnerability is present in the Ioctl system call with the command HYPRLOFS_ADD_ENTRIES. An attacker can cause a buffer to be allocated and never freed. When repeatedly exploited this will result in memory exhaustion, resulting in a full system denial of service.

NVD Source

Technical Analysis

CVE-2016-9039 requires local access, meaning attackers must already have a foothold on the target system.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.2.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

joyent1 product(s)
smartos
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

All References (4)

http://www.securityfocus.com/bid/95916Third Party Advisory · VDB Entry
http://www.talosintelligence.com/reports/TALOS-2016-0257/Exploit · Technical Description · Third Party Advisory · VDB Entry
http://www.securityfocus.com/bid/95916Third Party Advisory · VDB Entry
http://www.talosintelligence.com/reports/TALOS-2016-0257/Exploit · Technical Description · Third Party Advisory · VDB Entry

Quick Facts

CVE IDCVE-2016-9039
CVSS Score6.2 / 10
SeverityMEDIUM
WeaknessCWE-400
CISA KEVNo
Affected1 vendor(s)
PublishedJan 31, 2017

Related CVEs (CWE-400)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2016-9039 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.